JP2020048454A - Combine-harvester - Google Patents

Abstract

To provide a combine-harvester facilitating attachment of a hydraulic pipe, etc.SOLUTION: The combine-harvester includes: a travel unit provided on the lower side of a machine body frame and capable of swivelingly driving; a reaper supported so as to freely adjust the height; a thresher for threshing grain culms; a grain tank for temporarily storing the threshed grain culms; and a steering unit 6 provided in front of the grain tank. The combine-harvester is so configured that a lever 18 provided at the steering unit 6 performs a swivel operation of actuating side clutch cylinders and the height adjustment operation of actuating a reaper lifting/lowering cylinder, a machine body is swiveled by the left/right tilting operation of the lever 18, and the front/back tilting operation of the lever 18 is actuated by the reaper lifting/lowering cylinder. A reaper lifting/lowering switching valve is attached to an upper surface side of an oil tank for storing hydraulic oil of the side clutch cylinders and the reaper lifting/lowering cylinder.SELECTED DRAWING: Figure 22

Description

  The present invention relates to a combine.

  2. Description of the Related Art Conventionally, a configuration is known in which a turning operation by engaging and disengaging a side clutch of a traveling device and a height adjustment operation by a cutting vertical cylinder of a cutting device are performed by a lever provided on a control unit (see Patent Document 1).

JP-A-2003-79222

The known example has a problem that the hydraulic piping and the like are troublesome because the connection configuration between the lever, the side clutch cylinder, and the cutting vertical cylinder is unknown.
In the present application, the connection configuration between the lever and each part is devised, the piping configuration is simplified, and assembly is facilitated and cost is reduced.

The invention according to claim 1 is a traveling device 2 provided below the body frame 1 and capable of turning drive by the operation of left and right side clutch cylinders 11 provided on the transmission case M, and a cutting vertical cylinder for the body frame 1. A harvesting device 4 supported in a height-adjustable manner by 12; a threshing device 3 for threshing grain culms cut by the mowing device 4; a Glen tank 5 for temporarily storing grains threshed by the threshing device 3; In a combine having a control unit 6 provided in front of the lever, a turning operation for operating the side clutch cylinder 11 and a height adjusting operation for operating the cutting vertical cylinder 12 of the reaper 4 are provided on the control unit 6 with a lever. And a side clutch switching bar for supplying oil to the side clutch cylinder 11 by tilting the lever 18 from side to side. The power switch 15 is electrically switched to rotate the machine body, and the forward / backward tilting operation of the power steering lever 18 is transmitted by a cable 24 to switch the reaping vertical switching valve 16 to operate the reaping vertical cylinder 12. The harvesting up / down switching valve 16 is mounted on an upper surface side of an oil tank 13 for storing hydraulic oil of the side clutch cylinder 11 and the cutting vertical cylinder 12 via a mounting stay 21.
The invention according to claim 2 is the combine according to claim 1, wherein the oil tank 13 is disposed on the left side in the body running direction.
According to a third aspect of the present invention, the harvesting up / down switching valve 16 is the combine according to the second aspect, wherein the spool 23 is mounted on the mounting stay 21 such that a side on which the spool 23 projects faces the left side of the machine body.
According to a fourth aspect of the present invention, the tilting operation of the lever 18 in the front-rear direction is converted into a push / pull movement of the cable 24, and the spool 23 is slid by the push / pull movement of the cable 24 to switch an oil path. 4. The combine according to claim 3, wherein a cable stay 25 for attaching the cable 24 is attached to the attachment stay 21.
The invention according to a fifth aspect of the present invention is to provide a multi-valve 26 for hydraulically controlling the reaping vertical switching valve 16 and the side clutch switching valve 15 so as to enable simultaneous oil supply to the reaping vertical switching valve 16 and the mounting stay. 21 is a combine provided according to claim 4 provided between the combiner and the base.
According to a sixth aspect of the present invention, there is provided a cutting slide cylinder 40 for sliding the cutting device 4 in the left-right direction with respect to the body frame 1 side, and a cutting slide valve 41 for operating the cutting slide cylinder 40 switches the cutting vertical switching. The combine according to any one of claims 1 to 5 provided on the front side of the valve 16.

According to the first aspect of the present invention, the distance between the oil tank 13 and the cutting vertical switching valve 16 can be reduced, and the sub-assembly of the oil tank 13 and the cutting vertical switching valve 16 can be performed in advance. And the mounting of the reaping vertical switching valve 16 can be easily performed.
According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, access to the cutting upper / lower switching valve 16 is facilitated, and maintenance can be easily performed.
According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, the access to the cutting upper / lower switching valve 16 is further facilitated, and the maintenance can be performed more easily.
According to the fourth aspect of the present invention, in addition to the effect of the third aspect of the present invention, the cable 24 can be easily routed to the mowing up / down switching valve 16 and the cable stay 25 is connected to the vicinity of the mowing up / down switching valve 16. , So that the entire routing can be made compact.
According to the fifth aspect of the invention, in addition to the effects of the fourth aspect of the present invention, the mounting of the multi-purpose valve 26 and the cutting vertical switching valve 16 can be easily performed.
According to the invention of claim 6, in addition to the effect of the invention of any one of claims 1 to 5, the cutting slide valve 41 for operating the cutting slide cylinder 40 can be installed compactly.

The side view of a combine. FIG. The front view near an oil tank. Hydraulic circuit diagram. FIG. 4 is a plan view of a cutting upper and lower switching valve. The side view near an oil tank. FIG. FIG. 3 is a partial front perspective view of a control unit. FIG. FIG. The hydraulic circuit diagram of other embodiments. FIG. 2 is a partial schematic front view of the vicinity of a control unit, a fuel tank, and an oil tank. The top view near a fuel tank. FIG. 3 is a partial schematic front view of the vicinity of a fuel tank and an oil tank. Partial schematic side view near a fuel tank. FIG. 2 is a side view of the vicinity of a control unit and a fuel tank. The front view of a fuel tank. FIG. FIG. FIG. The side view near a control part. FIG. 3 is a front view of the vicinity of a control section and an oil tank. The side view near a control part. FIG. 2 is a front view of the vicinity of a control unit and a fuel tank. FIG. 2 is a perspective view of a lock mechanism of the Glen tank. FIG. 7 is a display example diagram of a monitor. (A) The display example figure of the monitor which changed the load condition. (B) The display example figure of the monitor which changed the load condition. Flow diagram. Flow diagram.

One embodiment of the present invention will be described with reference to the drawings of an example of a combine. 1 is a combine body frame, 2 is a traveling device, 3 is a threshing device provided above the fuselage frame 1, and 4 is a front side of the threshing device 3. The harvesting device provided, 5 is a Glen tank provided on the side of the threshing device 3, and 6 is a control unit provided in front of the Glen tank 5 (FIG. 1).
The traveling device 2 is configured to be able to travel by continuously changing the speed by a continuously variable transmission (HST) 10, and a side clutch (not shown) in the transmission case M is turned on and off by a side clutch cylinder 11. And the vehicle can turn (FIG. 4).
The cutting device 4 is configured to be vertically movable by a cutting vertical cylinder 12, and is configured to be able to adjust the cutting height.
FIG. 4 shows a hydraulic circuit of the continuously variable transmission 10, the side clutch cylinder 11, and the mowing vertical cylinder 12. The oil in the oil tank 13 is supplied to each valve by an oil supply pump 14 so that each cylinder is extended and contracted. I have.

Reference numeral 15 denotes a side clutch switching valve for switching the side clutch cylinder 11, and reference numeral 16 denotes a cutting vertical switching valve for extending and retracting the cutting vertical cylinder 12 for moving the cutting device 4 up and down.
The continuously variable transmission 10 is shifted by a main shift lever 17 provided on the control unit 6 (FIG. 1), and the side clutch cylinder 11 is tilted left and right (turning operation) of a power steering lever (lever) 18 provided on the control unit 6. Is detected by a limit switch (not shown), thereby switching the side clutch switching valve 15 to extend one of the left and right side clutch cylinders 11 to disconnect the side clutch on this side, thereby turning the body.
When the power steering lever 18 is tilted rearward, the cutting vertical cylinder 12 is extended to operate the cutting device 4 upward, and when the power steering lever 18 is tilted forward, the cutting vertical cylinder 12 is shortened and the cutting device 4 is operated. Is lowered.

The cutting vertical switching valve 16 for operating the cutting vertical cylinder 12 is a mechanical valve for switching the oil path by sliding the spool 23 via a mechanical interlocking mechanism. The cutting vertical switching valve 16 is disposed on the upper surface side of the oil tank 13. It is mounted on the provided mounting stay 21 (FIG. 6).
Thereby, the distance between the oil tank 13 and the cutting vertical switching valve 16 can be shortened. Further, the sub-assembly of the oil tank 13 and the cutting vertical switching valve 16 can be performed in advance, and the mounting of the oil tank 13 and the cutting vertical switching valve 16 can be easily performed.
When the oil tank 13 is disposed on the left side in the machine running direction, access to the reaping up / down switching valve 16 is facilitated and maintenance can be easily performed.
The reaping vertical switching valve 16 is mounted on the mounting stay 21 such that the side where the spool 23 protrudes faces the left side of the machine body.

This further facilitates access to the cutting upper / lower switching valve 16 and facilitates maintenance.
The harvesting up / down switching valve 16 is configured to convert the forward / backward tilting operation of the power steering lever 18 into a push / pull movement of the cable 24 and mechanically move (slide) the spool 23 to switch an internal oil passage. The cable stay 25 for attaching the cable 24 is attached to the attachment stay 21.
Thus, the cable 24 can be easily routed, and the cable stay 25 can be disposed near the cutting upper / lower switching valve 16, so that the cable 24 can be compactly routed.
The multi-purpose valve 26, which is hydraulically controlled so that oil can be simultaneously supplied to the cutting vertical switching valve 16 and the side clutch switching valve 15 (simultaneous operation of the cutting vertical operation and the turning operation), is connected to the cutting vertical switching valve 16 and the mounting stay 21. Between the two.

Thus, the mounting of the multi-purpose valve 26 and the reaping vertical switching valve 16 can be easily performed.
That is, the multi-purpose valve 26 and the reaping up / down switching valve 16 are mounted on the mounting stay 21 in an assembling manner so as to be vertically overlapped.
FIG. 11 shows another embodiment of the hydraulic circuit of the continuously variable transmission 10, the side clutch cylinder 11, and the cutting vertical cylinder 12, and the cutting device 4 can be slid in the left-right direction with respect to the body frame 1 by the cutting slide cylinder 40. The cutting slide cylinder 40 is extended and contracted by a cutting slide valve 41 to slide the cutting device 4.
The cutting slide valve 41 is mounted on the mounting stay 21 on the front side of the cutting vertical switching valve 16 (FIG. 6).
Thereby, the cutting slide valve 41 of the slide mechanism of the cutting device 4 can be installed compactly.

FIG. 16 shows a fuel tank 44 provided below the step 43 of the control unit 6. A concave portion 45 is provided on the upper surface of the fuel tank 44, and a fuel level sensor 46 for detecting the amount of fuel in the fuel tank 44 in the concave portion 45. Is provided (FIG. 17).
Thus, the fuel tank 44 can be provided with almost no gap below the lower surface of the step 43, and the capacity of the fuel tank 44 can be set large.
A separate recess 48 is provided around the fuel supply port 47 of the fuel tank 44.
Thereby, the wiring from the control section 6 to each part of the fuselage can be routed through the concave portion 48, and both securing the capacity of the fuel tank 44 and facilitating the wiring can be achieved.
The fuel pump 50 and the fuel filter 51 are arranged on the right side of the body frame 1 in the front-rear direction.
Thereby, the cooling effect of the fuel pump 50 and the fuel filter 51 can be improved by the wind from the traveling direction, and the maintenance is facilitated since the fuel pump 50 and the fuel filter 51 are provided on the left side of the body.

The fuel pump 50 and the fuel filter 51 are arranged between the upper surface of the body frame 1 and the lower surface of the radiator 52 (FIG. 16).
Thereby, the cooling effect of the fuel pump 50 and the fuel filter 51 can be improved by the wind from the traveling direction, and the maintenance is facilitated since the fuel pump 50 and the fuel filter 51 are provided on the left side of the body.
The protective cover 54 is provided on the radiator cover 53 (FIGS. 21 to 23).
A through hole 64 is provided in the front frame 60 of the operation seat of the control unit 6, and the breather hose 62 of the fuel tank 44 is inserted into the through hole 64.
Thus, the breather hose 62 can be routed without lowering the support rigidity of the entire control section 6.
The hydraulic hose 65 of the power steering lever 18 is inserted into the through hole 64 of the operation seat front frame 60 of the control section 6.
Accordingly, the hydraulic hose 65 of the power steering lever 18 can be routed without lowering the support rigidity of the entire control section 6.

The cable 24 of the power steering lever 18 is inserted into the through hole 64 of the operation seat front frame 60 of the control section 6.
Thereby, the cable 24 of the power steering lever 18 can be routed without lowering the support rigidity of the entire control section 6.
The lower part of the operation seat front frame 60 of the control part 6 is configured to penetrate the left side plate 65 of the step 43, and the upper part is also open.
Accordingly, the retention of water and dust is suppressed in step 43, and the hole of the paint at the time of painting is also used in step 43.
The breather hose 62 of the fuel tank 44 is inserted into the upper part of the operation seat front frame 60 of the control unit 6.
Thus, a component configuration for stopping the breather hose 62 can be eliminated.

The breather hose 62 of the fuel tank 44 inserted into the upper part of the operation seat front frame 60 of the operation part 6 is inserted from the lower part of the operation seat front frame 60 below the step 43.
The horn 67 is arranged on the right side of the body of the front frame 60 of the operation seat of the control section 6.
Thereby, the breather hose 62 and the horn 67 can be separated.
67A is a Freon cover.
The upper portion of the vertical reinforcing frame 68 is fixedly mounted on the right side of the body of the front frame 60 of the operation seat of the operating section 6, and the lower portion of the vertical reinforcing frame 68 is fixed to the transmission case M side.
Thereby, the support rigidity around the operation seat front frame 60 can be improved.
The operation seat front frame 60 of the control section 6 is configured to extend laterally from the step 43 to the left side of the fuselage in a front view, and then stand up.
Thereby, the vertical reinforcing frame 68 can be arranged to be offset to the left side of the fuel tank 44, the receiving width can be widened, and the support rigidity around the front frame 60 of the operator seat can be improved.
The electrical component 70 is arranged near the breather hose 62 inserted into the front frame 60 of the operation seat of the control unit 6.

Thus, the open end of the breather hose 62 can be separated from the vicinity of the upper part of the front frame 60 of the operation seat, and the electric component 70 can be arranged.
FIG. 25 shows a state in which a stay 72 is mounted on a frying device 71 for fretting the grain from the threshing device 3 to the Glen tank 5, a fixing member 73 is mounted on the stay 72, and a fixing knob bolt 74 screwed to the Glen tank 5 side on the fixing member 73. The locking knob bolt 74 is fixedly abutted with a locking dial 75 slidably attached to the movable fixing member 73 in the front-rear direction.
As a result, when the opened Glen tank 5 is returned to the original position, the fixing knob bolt 74 is screwed into the Glen tank 5 side, and the locking dial 75 is slid backward with respect to the fixing knob bolt 74. Since the anti-loosening dial 75 is engaged with the groove of the fixing knob bolt 74, the fixing knob bolt 74 is in a non-rotatable state and can be prevented from being loosened due to vibration of the machine body or the like.
In this case, the fixing knob bolt 74 and the locking dial 75 are detachably attached to the fixing member 73.

Therefore, when the fixing knob bolt 74 and the locking dial 75 are unnecessary, they can be removed.
A monitor 80 is provided on an operation panel (not shown) of the control unit 6 (FIG. 26), and a load level 82 under a load condition 81 of threshing load and / or engine load is displayed on an indicator of the monitor 80.
For example, when the threshing clutch lever is turned off, the engine load is displayed at the load level 82, when the threshing clutch lever is turned on, the threshing load is displayed under the load condition 81, and the threshing load and the engine load are displayed. Can be recognized.
Also, as shown in FIGS. 28 and 29, when the threshing load becomes the maximum, the load level 82 (indicator) flashes and the buzzer sounds, and at the same time, "Please return the main shift lever and decelerate." Is interrupted on the monitor 80 (FIG. 29).
Thus, by notifying the worker of the threshing load, the occurrence of loss can be suppressed, and the adjustment of the working speed in response to a change in the working state due to the condition of the crop or the like is facilitated.

83 is a display switchable display, 84 is a vehicle speed display, 85 is a grain amount display of the Glen tank 5, and 86 is a fuel remaining amount display.
The image interruption display on the monitor 80 is performed after the load level 82 is blinked a predetermined number of times.
Also, when executing the image interruption display to the effect that "Return the main shift lever and decelerate" to the monitor 80, the image "To maximum engine power, decelerate" is assigned to the monitor 80. Display.
The monitor 80 may display the greater of the threshing load and the engine load.

(Operation of the embodiment)
The present invention has the above-described configuration, in which the machine body is driven, the culm in the field is cut by the cutting device 4, and the cut culm is threshed by the threshing device 3.
The traveling device 2 for traveling the body is configured to be able to travel by continuously changing the speed by a continuously variable transmission (HST) continuously variable transmission 10, and the continuously variable transmission 10 is provided in the control section 6. The shift operation is performed by the main shift lever 17 to change the speed.
Further, a side clutch (not shown) provided in a transmission case M for transmitting rotation to the traveling device 2 is turned on and off by a side clutch cylinder 11, and the vehicle is turned. The turning operation is performed by tilting the power steering lever 18 in the left and right direction. When the power steering lever 18 is tilted left and right, the limit switch detects that the side clutch switching valve 15 is switched to cause one of the left and right side clutch cylinders 11 to expand and contract, thereby turning the body.

When the power steering lever 18 is tilted rearward, the mowing vertical cylinder 12 is extended and the mowing device 4 is raised, and when the power steering lever 18 is tilted forward, the cutting vertical cylinder 12 is shortened and the mowing device 4 is operated. Is lowered.
The cutting up / down switching valve 16 is a mechanical valve for mechanically operating the spool 23. Since the cutting up / down switching valve 16 is attached to the mounting stay 21 provided on the upper surface side of the oil tank 13, the cutting up / down switching valve 16 is switched between the oil tank 13 and the cutting up / down switching. The distance between the valves 16 can be reduced. Further, the sub-assembly of the oil tank 13 and the cutting vertical switching valve 16 can be performed in advance, and the mounting of the oil tank 13 and the cutting vertical switching valve 16 is facilitated.
The reaping up / down switching valve 16 is mounted on the mounting stay 21 so that the side where the spool 23 protrudes faces the left side of the machine body, so that access to the reaping up / down switching valve 16 is further facilitated and maintenance can be performed easily.

The harvesting up / down switching valve 16 is configured to convert the tilting operation of the power steering lever 18 in the front-rear direction into a pushing / pulling movement of the cable 24 and mechanically move the spool 23 for switching, and attach a cable stay 25 for attaching the cable 24. Since the cable 24 is attached to the stay 21, the cable 24 can be easily routed, and the cable stay 25 can be disposed near the cutting vertical switching valve 16, so that the cable 24 can be compactly routed.
Since the multi-purpose valve 26 for controlling the hydraulic pressure so as to enable simultaneous oil supply to the reaping vertical switching valve 16 and the side clutch switching valve 15 is provided between the reaping vertical switching valve 16 and the mounting stay 21, The mounting valve 26 and the reaping vertical switching valve 16 can be easily mounted.
That is, the multi-purpose valve 26 and the reaping up / down switching valve 16 are mounted on the mounting stay 21 in an assembling manner so as to be vertically overlapped.

  In a hydraulic circuit according to another embodiment shown in FIG. 11, a cutting slide valve 41 for expanding and contracting a cutting slide cylinder 40 that slides the cutting device 4 in the left-right direction with respect to the body frame 1 is mounted on the front side of the cutting vertical switching valve 16. Since it is mounted on the stay 21, the cutting slide valve 41 of the slide mechanism of the cutting device 4 can be installed compactly.

  DESCRIPTION OF SYMBOLS 1 ... Body frame, 2 ... Traveling device, 3 ... Threshing device, 4 ... Harvesting device, 5 ... Glen tank, 6 ... Steering unit, 10 ... Continuously variable transmission, 11 ... Side clutch cylinder, 12 ... Cutting vertical cylinder, 13 ... Oil tank, 14 ... Oil pump, 15 ... Side clutch switching valve, 16 ... Mowing up / down switching valve, 17 ... Main speed lever, 18 ... Power steering lever (lever), 21 ... Mounting stay, 23 ... Spool, 24 ... Cable 25, cable stay, 26, multi valve, 40, cutting slide cylinder, 41, cutting slide valve, 43, step, 44, fuel tank, 45, recess, 46, fuel remaining amount sensor, 47, fuel filler, 48: recess, 50: fuel pump, 51: fuel filter, 52: radiator, 53: radiator cover, 54: protective cover, 60: operation Seat front frame, 62: Breather hose, 65: Hydraulic hose, 64: Through hole, 65: Left side plate, 67: Horn, 68: Vertical reinforcing frame, 70: Electrical equipment, 71: Lifting device, 72: Stay, 73: movable fixing member, 74: knob bolt for fixing, 75: dial for locking, M: transmission case.

Claims (6)

  A mowing device (2) that is provided below the body frame (1) and that can be driven to turn by operation of left and right side clutch cylinders (11) provided in the transmission case (M), and a mowing to the body frame (1). A cutting device (4) supported in a freely adjustable manner by an upper and lower cylinder (12), a threshing device (3) for threshing grain culms cut by the cutting device (4), and a grain threshed by a threshing device (3) Tank (5) for temporarily storing oil and a combiner having a control section (6) provided in front of the Glen tank (5), a turning operation for operating the side clutch cylinder (11) and the reaper (4). The height adjustment operation for operating the cutting vertical cylinder (12) is performed by a lever (18) provided on the control section (6), and the lever (18) is tilted left and right to operate the suspension. The side clutch switching valve (15) that feeds oil to the clutch clutch (11) is electrically switched to rotate the machine body, and the forward / backward tilting operation of the power steering lever (18) is transmitted by a cable (24). The cutting vertical switch valve (16) is switched to operate the cutting vertical cylinder (12), and the upper surface of an oil tank (13) for storing hydraulic oil for the side clutch cylinder (11) and the cutting vertical cylinder (12). A combine in which the cutting upper and lower switching valve (16) is mounted on the side via a mounting stay (21).   The combine according to claim 1, wherein the oil tank (13) is disposed on a left side in a body running direction.   The combine according to claim 2, wherein the cutting upper and lower switching valve (16) is mounted on the mounting stay (21) such that a side of the spool (23) protruding faces the left side of the machine body.   The tilting operation of the lever (18) in the front-rear direction is converted into a push-pull movement of a cable (24), and the spool (23) is slid by the push-pull movement of the cable (24) to switch an oil path. The combine according to claim 3, wherein a cable stay (25) for attaching the cable (24) is attached to an attachment stay (21).   A multi-purpose valve (26) for hydraulically controlling the reaping vertical switching valve (16) and the side clutch switching valve (15) so that oil can be simultaneously supplied to the reaping vertical switching valve (16) and the mounting stay. The combine according to claim 4, wherein the combine is provided between the combine and (21).   A cutting slide cylinder (40) for sliding the cutting device (4) in the left-right direction with respect to the body frame (1) is provided, and a cutting slide valve (41) for operating the cutting slide cylinder (40) is connected to the cutting slide valve (41). The combine according to any one of claims 1 to 5, which is provided on a front side of the up / down switching valve (16).

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